/*
 * Copyright 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.navigation.fragment.compose

import androidx.compose.ui.test.assertIsDisplayed
import androidx.compose.ui.test.junit4.createAndroidComposeRule
import androidx.compose.ui.test.onNodeWithText
import androidx.fragment.app.commitNow
import androidx.navigation.fragment.compose.test.R
import androidx.navigation.fragment.compose.test.TestActivity
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.LargeTest
import com.google.common.truth.Truth.assertWithMessage
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith

@LargeTest
@RunWith(AndroidJUnit4::class)
class ComposableNavHostFragmentTest {

    @get:Rule val testRule = createAndroidComposeRule<TestActivity>()

    @Test
    fun create() {
        val navHostFragment = ComposableNavHostFragment.create(R.navigation.nav_simple)
        testRule.runOnUiThread {
            testRule.activity.supportFragmentManager.commitNow {
                add(R.id.fragment_container, navHostFragment)
            }
        }

        testRule.waitForIdle()

        val childFragmentManager = navHostFragment.childFragmentManager
        val currentFragment =
            requireNotNull(childFragmentManager.primaryNavigationFragment) {
                "Primary Navigation Fragment should be non-null"
            }
        assertWithMessage("Current Fragment should be a ComposableFragment instance")
            .that(currentFragment)
            .isInstanceOf(ComposableFragment::class.java)

        testRule.onNodeWithText("ComposableFragmentNavigator").assertIsDisplayed()
    }
}
